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.223 Remington Rifle Ammo: Overview
There is no doubt that the .223 Remington cartridge is one of the most popular rifle cartridges in the United States, most notably among hunters, target shooters, and backyard plinkers.
The bullets in this ammunition have a diameter of .224 inches and are housed in a 1-7/8 inch long rimless, bottleneck case. The cartridge has an overall length of 2.26 inches.
It is common to find factory loads for .223 Remington weighing between 35 and 85 grains (gr); however, the 55-grain bullet is the most common. You can further increase the versatility of the round by using 90 to 95-grain projectiles when reloading your own ammunition.
This cartridge has a small rifle primer, and its maximum pressure is 55,000 pounds per square inch (psi). There is a 1:12 twist ratio for .233 bolt action rifles and a twist between 1:10 and 1:7 for AR-15 semi-automatics. The tighter rifling helps to stabilize and improve the accuracy of the projectile.
.223 Remington Ammo: Frequently Asked Questions
What is .223 Remington ammo?
The .223 Remington cartridge was developed along with the AR-15 rifle for the Military. This cartridge is most commonly found in 55 grain (gr) and offers shooters a mild recoil and straight trajectory, making it popular as a varmint gun or for taking down small predators, such as coyotes. .223 ammo can be fired from guns chambered for the more powerful cartridge while it is similar in size to the 5.56*45mm NATO round, making it a favorite among shooters of AR-style guns.
How do .223 Remington and 5.56 ammo differ?
It appears that both .223 Remington (.223) and 5.56*45mm NATO (.56*45mm NATO) ammo have similar designs, but they differ in their configuration. The Military round carries more power and stopping power than .223 ammo, due to its different powder loads, bullet weights, and chamber pressure. It is often referred to as the .223 +P round. What’s more, rifles chambered for .223 ammunition have a shorter leade (distance from where the cartridge sits to where the rifling of the barrel begins) than those chambered for 5.56 NATO ammo.
These rounds cannot be interchanged due to their differences. The .223 cartridge can be fired out of weapons chambered for the 5.56 NATO, while the 5.56 bullet cannot be fired from a rifle chambered in the .223 cartridge.
Ballistic Performance Chart for .223 Remington:
Please note that the information below is from the manufacturer and is intended for informational purposes only. With a firearm, it is possible that the ballistics you achieve will differ considerably from the advertised ones. Also, even with the same brand and type of ammunition, ballistics can vary from lot to lot.
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